Sheriff's deputies responded about 10 p.m. to Dodge Park at 11021 Southeast Lusted Road in Sandy because a man reported he had given a woman in her early 20s a ride there, according to Clackamas County Sheriff's Office spokesman Deputy Byron O'Neil. After the woman asked the driver for directions to the river, he said he became concerned and called 9-1-1 because he did not see houses in that direction.

Deputies found the woman lying naked in the river. They were unsuccessful in reaching her with rescue throw bags, but persuaded her to move onto an island in the middle of the river after using a patrol car bullhorn.

The woman was suffering from hypothermia and confused, according to authorities. There were no other injuries reported, and she was transported to a local hospital for evaluation.

Deputies are withholding the woman's name in case she is the victim of a crime and are encouraging the public to call with information on the incident. You can contact the Clackamas County Sheriff's Office's confidential Tip Line -- by phone at 503-723-4949, or by using the online e-mail form. Please reference Clackamas County Sheriff's Office Case #11-12332.